From: Wen-chien Jesse Sung <jesse@cola.voip.idv.tw>
Date: Thu, 30 Jun 2005 03:42:10 +0000 (+0800)
Subject: [PATCH] fix semaphore handling in __unregister_chrdev_region
X-Git-Tag: v2.6.12.3~1
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b4a3c2ae79b275a58192f418aa33f156fb648f38;p=thirdparty%2Fkernel%2Fstable.git

[PATCH] fix semaphore handling in __unregister_chrdev_region

This up() should be down() instead.

Signed-off-by: Wen-chien Jesse Sung <jesse@cola.voip.idv.tw>
Signed-off-by: Chris Wright <chrisw@osdl.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---

diff --git a/fs/char_dev.c b/fs/char_dev.c
index c1e3537909fc1..e8fb88b7521f6 100644
--- a/fs/char_dev.c
+++ b/fs/char_dev.c
@@ -139,7 +139,7 @@ __unregister_chrdev_region(unsigned major, unsigned baseminor, int minorct)
 	struct char_device_struct *cd = NULL, **cp;
 	int i = major_to_index(major);
 
-	up(&chrdevs_lock);
+	down(&chrdevs_lock);
 	for (cp = &chrdevs[i]; *cp; cp = &(*cp)->next)
 		if ((*cp)->major == major &&
 		    (*cp)->baseminor == baseminor &&